Sep. 30, 2021FALSE0000067088--03-31http://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201905Memberhttp://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201905Memberhttp://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201905Member00000670882021-04-012021-09-3000000670882021-03-31iso4217:JPY00000670882021-09-300000067088us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-03-310000067088us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-09-30xbrli:sharesiso4217:JPYxbrli:shares00000670882020-04-012020-09-300000067088mufg:CapitalStockMember2020-03-310000067088mufg:CapitalStockMember2021-03-310000067088mufg:CapitalStockMember2020-09-300000067088mufg:CapitalStockMember2021-09-300000067088us-gaap:AdditionalPaidInCapitalMember2020-03-310000067088us-gaap:AdditionalPaidInCapitalMember2021-03-310000067088us-gaap:AdditionalPaidInCapitalMember2020-04-012020-09-300000067088us-gaap:AdditionalPaidInCapitalMember2021-04-012021-09-300000067088us-gaap:AdditionalPaidInCapitalMember2020-09-300000067088us-gaap:AdditionalPaidInCapitalMember2021-09-300000067088us-gaap:RetainedEarningsAppropriatedMember2020-03-310000067088us-gaap:RetainedEarningsAppropriatedMember2021-03-310000067088us-gaap:RetainedEarningsAppropriatedMember2020-09-300000067088us-gaap:RetainedEarningsAppropriatedMember2021-09-300000067088us-gaap:RetainedEarningsUnappropriatedMember2020-03-310000067088us-gaap:RetainedEarningsUnappropriatedMember2021-03-310000067088us-gaap:RetainedEarningsUnappropriatedMember2020-04-012020-09-300000067088us-gaap:RetainedEarningsUnappropriatedMember2021-04-012021-09-300000067088srt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMemberus-gaap:RetainedEarningsUnappropriatedMember2020-09-300000067088srt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMemberus-gaap:RetainedEarningsUnappropriatedMember2021-09-300000067088us-gaap:RetainedEarningsUnappropriatedMember2020-09-300000067088us-gaap:RetainedEarningsUnappropriatedMember2021-09-300000067088us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-03-310000067088us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-03-310000067088us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-04-012020-09-300000067088us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-04-012021-09-300000067088us-gaap:AccumulatedOtherComprehensiveIncomeMembersrt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember2020-09-300000067088us-gaap:AccumulatedOtherComprehensiveIncomeMembersrt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember2021-09-300000067088us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-09-300000067088us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-09-300000067088us-gaap:TreasuryStockMember2020-03-310000067088us-gaap:TreasuryStockMember2021-03-310000067088us-gaap:TreasuryStockMember2020-04-012020-09-300000067088us-gaap:TreasuryStockMember2021-04-012021-09-300000067088us-gaap:TreasuryStockMember2020-09-300000067088us-gaap:TreasuryStockMember2021-09-300000067088us-gaap:ParentMember2020-09-300000067088us-gaap:ParentMember2021-09-300000067088us-gaap:NoncontrollingInterestMember2020-03-310000067088us-gaap:NoncontrollingInterestMember2021-03-310000067088us-gaap:NoncontrollingInterestMember2020-04-012020-09-300000067088us-gaap:NoncontrollingInterestMember2021-04-012021-09-300000067088us-gaap:NoncontrollingInterestMembersrt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember2020-09-300000067088us-gaap:NoncontrollingInterestMembersrt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember2021-09-300000067088us-gaap:NoncontrollingInterestMember2020-09-300000067088us-gaap:NoncontrollingInterestMember2021-09-3000000670882020-09-3000000670882020-03-310000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMember2021-09-30iso4217:USD0000067088mufg:MUFGUnionBankMembermufg:USBancorpMember2021-09-012021-09-300000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMember2021-09-012021-09-300000067088mufg:USBancorpMember2021-09-30xbrli:pure0000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMember2020-01-012020-06-300000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMember2021-01-012021-06-300000067088mufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-03-310000067088mufg:JapanesePrefecturalAndMunicipalBondsMember2021-03-310000067088mufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-03-310000067088us-gaap:CorporateDebtSecuritiesMember2021-03-310000067088us-gaap:ResidentialMortgageBackedSecuritiesMember2021-03-310000067088us-gaap:CommercialMortgageBackedSecuritiesMember2021-03-310000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember2021-03-310000067088us-gaap:OtherDebtSecuritiesMember2021-03-310000067088us-gaap:CommercialPaperMember2021-03-310000067088us-gaap:ResidentialMortgageBackedSecuritiesMembermufg:MUFGAmericasHoldingsCorporationMember2021-03-310000067088mufg:MUFGAmericasHoldingsCorporationMemberus-gaap:CommercialMortgageBackedSecuritiesMember2021-03-310000067088mufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-09-300000067088mufg:JapanesePrefecturalAndMunicipalBondsMember2021-09-300000067088mufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-09-300000067088us-gaap:CorporateDebtSecuritiesMember2021-09-300000067088us-gaap:ResidentialMortgageBackedSecuritiesMember2021-09-300000067088us-gaap:CommercialMortgageBackedSecuritiesMember2021-09-300000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember2021-09-300000067088us-gaap:OtherDebtSecuritiesMember2021-09-300000067088us-gaap:CommercialPaperMember2021-09-300000067088us-gaap:ResidentialMortgageBackedSecuritiesMembermufg:MUFGAmericasHoldingsCorporationMember2021-09-300000067088mufg:MUFGAmericasHoldingsCorporationMemberus-gaap:CommercialMortgageBackedSecuritiesMember2021-09-30mufg:Securities0000067088us-gaap:OtherDebtSecuritiesMember2021-04-012021-09-300000067088mufg:AlternativeMeasurementMembermufg:NonMarketableEquitySecuritiesMember2021-03-310000067088mufg:AlternativeMeasurementMembermufg:NonMarketableEquitySecuritiesMember2021-09-300000067088mufg:AlternativeMeasurementMembermufg:NonMarketableEquitySecuritiesMember2020-04-012020-09-300000067088mufg:AlternativeMeasurementMembermufg:NonMarketableEquitySecuritiesMember2021-04-012021-09-300000067088us-gaap:GeographicDistributionDomesticMembermufg:ManufacturingSectorMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMembermufg:ManufacturingSectorMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMembermufg:ConstructionSectorMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMembermufg:ConstructionSectorMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMemberus-gaap:RealEstateSectorMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMemberus-gaap:RealEstateSectorMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMembermufg:ServicesSectorMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMembermufg:ServicesSectorMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMembermufg:WholesaleAndRetailSectorMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMembermufg:WholesaleAndRetailSectorMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMemberus-gaap:FinancialServicesSectorMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMemberus-gaap:FinancialServicesSectorMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMembermufg:CommunicationAndInformationServicesSectorMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMembermufg:CommunicationAndInformationServicesSectorMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMembermufg:OtherIndustriesSectorMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMembermufg:OtherIndustriesSectorMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMembermufg:ConsumerSectorMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMembermufg:ConsumerSectorMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMember2021-09-300000067088us-gaap:GovernmentSectorMemberus-gaap:GeographicDistributionForeignMember2021-03-310000067088us-gaap:GovernmentSectorMemberus-gaap:GeographicDistributionForeignMember2021-09-300000067088us-gaap:GeographicDistributionForeignMemberus-gaap:FinancialServicesSectorMember2021-03-310000067088us-gaap:GeographicDistributionForeignMemberus-gaap:FinancialServicesSectorMember2021-09-300000067088us-gaap:GeographicDistributionForeignMemberus-gaap:CommercialAndIndustrialSectorMember2021-03-310000067088us-gaap:GeographicDistributionForeignMemberus-gaap:CommercialAndIndustrialSectorMember2021-09-300000067088mufg:OtherSectorMemberus-gaap:GeographicDistributionForeignMember2021-03-310000067088mufg:OtherSectorMemberus-gaap:GeographicDistributionForeignMember2021-09-300000067088us-gaap:GeographicDistributionForeignMember2021-03-310000067088us-gaap:GeographicDistributionForeignMember2021-09-300000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMember2021-03-310000067088us-gaap:CommercialPortfolioSegmentMembersrt:MinimumMember2021-04-012021-09-300000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMembersrt:MinimumMember2021-04-012021-09-300000067088mufg:CardPortfolioSegmentMembersrt:MinimumMember2021-04-012021-09-300000067088mufg:KrungsriPortfolioSegmentMembersrt:MinimumMember2021-04-012021-09-300000067088us-gaap:ResidentialPortfolioSegmentMembersrt:MinimumMember2021-04-012021-09-300000067088us-gaap:GeographicDistributionDomesticMemberus-gaap:CommercialPortfolioSegmentMember2021-03-310000067088us-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-03-310000067088us-gaap:ResidentialPortfolioSegmentMember2021-03-310000067088mufg:CardPortfolioSegmentMember2021-03-310000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-03-310000067088mufg:KrungsriPortfolioSegmentMember2021-03-310000067088us-gaap:UnallocatedFinancingReceivablesMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMemberus-gaap:CommercialPortfolioSegmentMember2021-09-300000067088us-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-09-300000067088us-gaap:ResidentialPortfolioSegmentMember2021-09-300000067088mufg:CardPortfolioSegmentMember2021-09-300000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-09-300000067088mufg:KrungsriPortfolioSegmentMember2021-09-300000067088us-gaap:UnallocatedFinancingReceivablesMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMemberus-gaap:CommercialPortfolioSegmentMember2020-04-012020-09-300000067088us-gaap:GeographicDistributionDomesticMemberus-gaap:CommercialPortfolioSegmentMember2021-04-012021-09-300000067088us-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2020-04-012020-09-300000067088us-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-04-012021-09-300000067088us-gaap:ResidentialPortfolioSegmentMember2020-04-012020-09-300000067088us-gaap:ResidentialPortfolioSegmentMember2021-04-012021-09-300000067088mufg:CardPortfolioSegmentMember2020-04-012020-09-300000067088mufg:CardPortfolioSegmentMember2021-04-012021-09-300000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMember2020-04-012020-09-300000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-04-012021-09-300000067088mufg:KrungsriPortfolioSegmentMember2020-04-012020-09-300000067088mufg:KrungsriPortfolioSegmentMember2021-04-012021-09-300000067088us-gaap:UnallocatedFinancingReceivablesMember2020-04-012020-09-300000067088us-gaap:UnallocatedFinancingReceivablesMember2021-04-012021-09-300000067088srt:MaximumMemberus-gaap:ResidentialPortfolioSegmentMember2021-04-012021-09-300000067088srt:MaximumMemberus-gaap:CommercialPortfolioSegmentMember2021-04-012021-09-300000067088us-gaap:CommercialPortfolioSegmentMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMembermufg:NormalMemberus-gaap:CommercialPortfolioSegmentMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMembermufg:CloseWatchMemberus-gaap:CommercialPortfolioSegmentMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMembermufg:LikelyToBecomeBankruptOrLegallyVirtuallyBankruptMemberus-gaap:CommercialPortfolioSegmentMember2021-03-310000067088mufg:NormalMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-03-310000067088mufg:CloseWatchMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-03-310000067088mufg:LikelyToBecomeBankruptOrLegallyVirtuallyBankruptMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-03-310000067088us-gaap:ResidentialPortfolioSegmentMembermufg:AccrualMember2021-03-310000067088mufg:NonAccrualMemberus-gaap:ResidentialPortfolioSegmentMember2021-03-310000067088mufg:CardPortfolioSegmentMembermufg:AccrualMember2021-03-310000067088mufg:CardPortfolioSegmentMembermufg:NonAccrualMember2021-03-310000067088mufg:CreditQualityBasedOnNumberOfDelinquenciesMembermufg:AccrualMembermufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-03-310000067088mufg:NonAccrualMembermufg:CreditQualityBasedOnNumberOfDelinquenciesMembermufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-03-310000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMemberus-gaap:PassMembermufg:CreditQualityBasedOnInternalCreditRatingsMember2021-03-310000067088us-gaap:SpecialMentionMembermufg:MUFGAmericasHoldingsPortfolioSegmentMembermufg:CreditQualityBasedOnInternalCreditRatingsMember2021-03-310000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMembermufg:ClassifiedMembermufg:CreditQualityBasedOnInternalCreditRatingsMember2021-03-310000067088us-gaap:PerformingFinancingReceivableMembermufg:KrungsriPortfolioSegmentMember2021-03-310000067088mufg:UnderPerformingMembermufg:KrungsriPortfolioSegmentMember2021-03-310000067088mufg:KrungsriPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMember2021-03-310000067088us-gaap:UnallocatedFinancingReceivablesMembermufg:AccrualMember2021-03-310000067088mufg:NonAccrualMemberus-gaap:UnallocatedFinancingReceivablesMember2021-03-310000067088us-gaap:CommercialPortfolioSegmentMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMembermufg:NormalMemberus-gaap:CommercialPortfolioSegmentMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMembermufg:CloseWatchMemberus-gaap:CommercialPortfolioSegmentMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMembermufg:LikelyToBecomeBankruptOrLegallyVirtuallyBankruptMemberus-gaap:CommercialPortfolioSegmentMember2021-09-300000067088mufg:NormalMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-09-300000067088mufg:CloseWatchMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-09-300000067088mufg:LikelyToBecomeBankruptOrLegallyVirtuallyBankruptMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-09-300000067088us-gaap:ResidentialPortfolioSegmentMembermufg:AccrualMember2021-09-300000067088mufg:NonAccrualMemberus-gaap:ResidentialPortfolioSegmentMember2021-09-300000067088mufg:CardPortfolioSegmentMembermufg:AccrualMember2021-09-300000067088mufg:CardPortfolioSegmentMembermufg:NonAccrualMember2021-09-300000067088mufg:CreditQualityBasedOnNumberOfDelinquenciesMembermufg:AccrualMembermufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-09-300000067088mufg:NonAccrualMembermufg:CreditQualityBasedOnNumberOfDelinquenciesMembermufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-09-300000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMemberus-gaap:PassMembermufg:CreditQualityBasedOnInternalCreditRatingsMember2021-09-300000067088us-gaap:SpecialMentionMembermufg:MUFGAmericasHoldingsPortfolioSegmentMembermufg:CreditQualityBasedOnInternalCreditRatingsMember2021-09-300000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMembermufg:ClassifiedMembermufg:CreditQualityBasedOnInternalCreditRatingsMember2021-09-300000067088us-gaap:PerformingFinancingReceivableMembermufg:KrungsriPortfolioSegmentMember2021-09-300000067088mufg:UnderPerformingMembermufg:KrungsriPortfolioSegmentMember2021-09-300000067088mufg:KrungsriPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMember2021-09-300000067088us-gaap:UnallocatedFinancingReceivablesMembermufg:AccrualMember2021-09-300000067088mufg:NonAccrualMemberus-gaap:UnallocatedFinancingReceivablesMember2021-09-300000067088mufg:FinancialAsset1To3MonthsPastDueMemberus-gaap:GeographicDistributionDomesticMemberus-gaap:CommercialPortfolioSegmentMember2021-03-310000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMemberus-gaap:GeographicDistributionDomesticMemberus-gaap:CommercialPortfolioSegmentMember2021-03-310000067088us-gaap:FinancialAssetPastDueMemberus-gaap:GeographicDistributionDomesticMemberus-gaap:CommercialPortfolioSegmentMember2021-03-310000067088us-gaap:GeographicDistributionDomesticMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2021-03-310000067088mufg:FinancialAsset1To3MonthsPastDueMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-03-310000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-03-310000067088us-gaap:FinancialAssetPastDueMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-03-310000067088us-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMemberus-gaap:FinancialAssetNotPastDueMember2021-03-310000067088mufg:FinancialAsset1To3MonthsPastDueMemberus-gaap:ResidentialPortfolioSegmentMember2021-03-310000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMemberus-gaap:ResidentialPortfolioSegmentMember2021-03-310000067088us-gaap:FinancialAssetPastDueMemberus-gaap:ResidentialPortfolioSegmentMember2021-03-310000067088us-gaap:ResidentialPortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2021-03-310000067088mufg:CardPortfolioSegmentMembermufg:FinancialAsset1To3MonthsPastDueMember2021-03-310000067088mufg:CardPortfolioSegmentMembermufg:FinancingReceivablesGreaterThan3MonthsPastDueMember2021-03-310000067088mufg:CardPortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2021-03-310000067088mufg:CardPortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2021-03-310000067088mufg:FinancialAsset1To3MonthsPastDueMembermufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-03-310000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMembermufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-03-310000067088us-gaap:FinancialAssetPastDueMembermufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-03-310000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2021-03-310000067088mufg:FinancialAsset1To3MonthsPastDueMembermufg:KrungsriPortfolioSegmentMember2021-03-310000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMembermufg:KrungsriPortfolioSegmentMember2021-03-310000067088us-gaap:FinancialAssetPastDueMembermufg:KrungsriPortfolioSegmentMember2021-03-310000067088mufg:KrungsriPortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2021-03-310000067088mufg:FinancialAsset1To3MonthsPastDueMemberus-gaap:UnallocatedFinancingReceivablesMember2021-03-310000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMemberus-gaap:UnallocatedFinancingReceivablesMember2021-03-310000067088us-gaap:FinancialAssetPastDueMemberus-gaap:UnallocatedFinancingReceivablesMember2021-03-310000067088us-gaap:UnallocatedFinancingReceivablesMemberus-gaap:FinancialAssetNotPastDueMember2021-03-310000067088mufg:FinancialAsset1To3MonthsPastDueMember2021-03-310000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMember2021-03-310000067088us-gaap:FinancialAssetPastDueMember2021-03-310000067088us-gaap:FinancialAssetNotPastDueMember2021-03-310000067088mufg:FinancialAsset1To3MonthsPastDueMemberus-gaap:GeographicDistributionDomesticMemberus-gaap:CommercialPortfolioSegmentMember2021-09-300000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMemberus-gaap:GeographicDistributionDomesticMemberus-gaap:CommercialPortfolioSegmentMember2021-09-300000067088us-gaap:FinancialAssetPastDueMemberus-gaap:GeographicDistributionDomesticMemberus-gaap:CommercialPortfolioSegmentMember2021-09-300000067088us-gaap:GeographicDistributionDomesticMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2021-09-300000067088mufg:FinancialAsset1To3MonthsPastDueMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-09-300000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-09-300000067088us-gaap:FinancialAssetPastDueMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMember2021-09-300000067088us-gaap:CommercialPortfolioSegmentMemberus-gaap:GeographicDistributionForeignMemberus-gaap:FinancialAssetNotPastDueMember2021-09-300000067088mufg:FinancialAsset1To3MonthsPastDueMemberus-gaap:ResidentialPortfolioSegmentMember2021-09-300000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMemberus-gaap:ResidentialPortfolioSegmentMember2021-09-300000067088us-gaap:FinancialAssetPastDueMemberus-gaap:ResidentialPortfolioSegmentMember2021-09-300000067088us-gaap:ResidentialPortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2021-09-300000067088mufg:CardPortfolioSegmentMembermufg:FinancialAsset1To3MonthsPastDueMember2021-09-300000067088mufg:CardPortfolioSegmentMembermufg:FinancingReceivablesGreaterThan3MonthsPastDueMember2021-09-300000067088mufg:CardPortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2021-09-300000067088mufg:CardPortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2021-09-300000067088mufg:FinancialAsset1To3MonthsPastDueMembermufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-09-300000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMembermufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-09-300000067088us-gaap:FinancialAssetPastDueMembermufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-09-300000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2021-09-300000067088mufg:FinancialAsset1To3MonthsPastDueMembermufg:KrungsriPortfolioSegmentMember2021-09-300000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMembermufg:KrungsriPortfolioSegmentMember2021-09-300000067088us-gaap:FinancialAssetPastDueMembermufg:KrungsriPortfolioSegmentMember2021-09-300000067088mufg:KrungsriPortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2021-09-300000067088mufg:FinancialAsset1To3MonthsPastDueMemberus-gaap:UnallocatedFinancingReceivablesMember2021-09-300000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMemberus-gaap:UnallocatedFinancingReceivablesMember2021-09-300000067088us-gaap:FinancialAssetPastDueMemberus-gaap:UnallocatedFinancingReceivablesMember2021-09-300000067088us-gaap:UnallocatedFinancingReceivablesMemberus-gaap:FinancialAssetNotPastDueMember2021-09-300000067088mufg:FinancialAsset1To3MonthsPastDueMember2021-09-300000067088mufg:FinancingReceivablesGreaterThan3MonthsPastDueMember2021-09-300000067088us-gaap:FinancialAssetPastDueMember2021-09-300000067088us-gaap:FinancialAssetNotPastDueMember2021-09-300000067088us-gaap:CommercialPortfolioSegmentMember2020-03-310000067088us-gaap:ResidentialPortfolioSegmentMember2020-03-310000067088mufg:CardPortfolioSegmentMember2020-03-310000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMember2020-03-310000067088mufg:KrungsriPortfolioSegmentMember2020-03-310000067088us-gaap:UnallocatedFinancingReceivablesMember2020-03-310000067088us-gaap:CommercialPortfolioSegmentMemberus-gaap:AccountingStandardsUpdate201613Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-03-310000067088us-gaap:ResidentialPortfolioSegmentMemberus-gaap:AccountingStandardsUpdate201613Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-03-310000067088mufg:CardPortfolioSegmentMemberus-gaap:AccountingStandardsUpdate201613Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-03-310000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMemberus-gaap:AccountingStandardsUpdate201613Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-03-310000067088mufg:KrungsriPortfolioSegmentMemberus-gaap:AccountingStandardsUpdate201613Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-03-310000067088us-gaap:UnallocatedFinancingReceivablesMemberus-gaap:AccountingStandardsUpdate201613Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-03-310000067088us-gaap:AccountingStandardsUpdate201613Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-03-310000067088us-gaap:CommercialPortfolioSegmentMember2020-04-012020-09-300000067088us-gaap:CommercialPortfolioSegmentMember2020-09-300000067088us-gaap:ResidentialPortfolioSegmentMember2020-09-300000067088mufg:CardPortfolioSegmentMember2020-09-300000067088mufg:MUFGAmericasHoldingsPortfolioSegmentMember2020-09-300000067088mufg:KrungsriPortfolioSegmentMember2020-09-300000067088us-gaap:UnallocatedFinancingReceivablesMember2020-09-300000067088us-gaap:CommercialPortfolioSegmentMember2021-04-012021-09-300000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMemberus-gaap:CommercialPortfolioSegmentMembermufg:MUFGUnionBankMember2021-04-012021-09-300000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMemberus-gaap:ResidentialPortfolioSegmentMembermufg:MUFGUnionBankMember2021-04-012021-09-300000067088mufg:CardPortfolioSegmentMemberus-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMember2021-04-012021-09-300000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMembermufg:MUFGAmericasHoldingsPortfolioSegmentMember2021-04-012021-09-300000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:KrungsriPortfolioSegmentMembermufg:MUFGUnionBankMember2021-04-012021-09-300000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMemberus-gaap:UnallocatedFinancingReceivablesMembermufg:MUFGUnionBankMember2021-04-012021-09-300000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMember2021-04-012021-09-300000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMember2020-04-012020-09-300000067088us-gaap:ComputerSoftwareIntangibleAssetMember2021-03-310000067088us-gaap:ComputerSoftwareIntangibleAssetMember2021-09-300000067088us-gaap:CustomerRelationshipsMember2021-03-310000067088us-gaap:CustomerRelationshipsMember2021-09-300000067088us-gaap:CoreDepositsMember2021-03-310000067088us-gaap:CoreDepositsMember2021-09-300000067088us-gaap:TradeNamesMember2021-03-310000067088us-gaap:TradeNamesMember2021-09-300000067088us-gaap:OtherIntangibleAssetsMember2021-03-310000067088us-gaap:OtherIntangibleAssetsMember2021-09-300000067088us-gaap:ContractualRightsMember2021-03-310000067088us-gaap:ContractualRightsMember2021-09-300000067088mufg:TradingAccountSecuritiesMember2021-09-300000067088mufg:InvestmentSecuritiesMember2021-09-300000067088us-gaap:LoansReceivableMember2021-09-300000067088mufg:OtherPledgedAssetsMember2021-09-300000067088us-gaap:DepositsMember2021-09-300000067088mufg:PayablesUnderRepurchaseAgreementsAndSecuritiesLendingTransactionsMember2021-09-300000067088mufg:OtherShortTermBorrowingsAndLongTermDebtMember2021-09-300000067088mufg:OtherPledgedAssetsClassifiedByTypeOfLiabilitiesMember2021-09-300000067088country:JPmufg:PensionBenefitsAndSIPsMember2020-04-012020-09-300000067088country:JPmufg:PensionBenefitsAndSIPsMember2021-04-012021-09-300000067088us-gaap:ForeignPlanMemberus-gaap:PensionPlansDefinedBenefitMember2020-04-012020-09-300000067088us-gaap:ForeignPlanMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-04-012020-09-300000067088us-gaap:ForeignPlanMemberus-gaap:PensionPlansDefinedBenefitMember2021-04-012021-09-300000067088us-gaap:ForeignPlanMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-04-012021-09-300000067088us-gaap:MaturityOvernightAndOnDemandMember2021-03-310000067088mufg:Maturity30DaysOrLessMember2021-03-310000067088mufg:Maturity31To90DaysMember2021-03-310000067088us-gaap:MaturityOver90DaysMember2021-03-310000067088us-gaap:MaturityOvernightAndOnDemandMember2021-09-300000067088mufg:Maturity30DaysOrLessMember2021-09-300000067088mufg:Maturity31To90DaysMember2021-09-300000067088us-gaap:MaturityOver90DaysMember2021-09-300000067088mufg:MarketableEquitySecuritiesMember2021-03-310000067088mufg:OtherClassOfCollateralPledgedMember2021-03-310000067088mufg:MarketableEquitySecuritiesMember2021-09-300000067088mufg:OtherClassOfCollateralPledgedMember2021-09-300000067088us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2020-03-310000067088us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-03-310000067088us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2020-04-012020-09-300000067088us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-04-012021-09-300000067088us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMembersrt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember2020-09-300000067088us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2020-09-300000067088us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-09-300000067088us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2020-03-310000067088us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2021-03-310000067088us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2020-04-012020-09-300000067088us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2021-04-012021-09-300000067088us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2020-09-300000067088us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2021-09-300000067088us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-03-310000067088us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-03-310000067088us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-04-012020-09-300000067088us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-04-012021-09-300000067088us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-09-300000067088us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-03-310000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-03-310000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-04-012020-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-04-012021-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-09-300000067088us-gaap:AccumulatedTranslationAdjustmentMember2020-03-310000067088us-gaap:AccumulatedTranslationAdjustmentMember2021-03-310000067088us-gaap:AccumulatedTranslationAdjustmentMember2020-04-012020-09-300000067088us-gaap:AccumulatedTranslationAdjustmentMember2021-04-012021-09-300000067088us-gaap:AccumulatedTranslationAdjustmentMember2020-09-300000067088us-gaap:AccumulatedTranslationAdjustmentMember2021-09-300000067088us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember2020-04-012020-09-300000067088us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember2021-04-012021-09-300000067088us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMember2020-04-012020-09-300000067088us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMember2021-04-012021-09-300000067088us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionIncludingPortionAttributableToNoncontrollingInterestMember2020-04-012020-09-300000067088us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionIncludingPortionAttributableToNoncontrollingInterestMember2021-04-012021-09-300000067088us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToNoncontrollingInterestMember2020-04-012020-09-300000067088us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToNoncontrollingInterestMember2021-04-012021-09-300000067088us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterestMember2020-04-012020-09-300000067088us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterestMember2021-04-012021-09-300000067088us-gaap:AccumulatedGainLossNetCashFlowHedgeNoncontrollingInterestMember2020-04-012020-09-300000067088us-gaap:AccumulatedGainLossNetCashFlowHedgeNoncontrollingInterestMember2021-04-012021-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2020-04-012020-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2021-04-012021-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentAttributableToNoncontrollingInterestMember2020-04-012020-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentAttributableToNoncontrollingInterestMember2021-04-012021-09-300000067088us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2020-04-012020-09-300000067088us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2021-04-012021-09-300000067088us-gaap:AccumulatedForeignCurrencyAdjustmentAttributableToNoncontrollingInterestMember2020-04-012020-09-300000067088us-gaap:AccumulatedForeignCurrencyAdjustmentAttributableToNoncontrollingInterestMember2021-04-012021-09-300000067088us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMembermufg:NetGainsOnSalesAndRedemptionsOfSecuritiesAvailableForSaleMember2020-04-012020-09-300000067088us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMembermufg:NetGainsOnSalesAndRedemptionsOfSecuritiesAvailableForSaleMember2021-04-012021-09-300000067088us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-04-012020-09-300000067088us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-04-012021-09-300000067088us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-04-012020-09-300000067088us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-04-012021-09-300000067088us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:InterestRateContractMember2020-04-012020-09-300000067088us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:InterestRateContractMember2021-04-012021-09-300000067088us-gaap:ForeignExchangeContractMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-04-012020-09-300000067088us-gaap:ForeignExchangeContractMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-04-012021-09-300000067088us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-04-012020-09-300000067088us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-04-012021-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-04-012020-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-04-012021-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-04-012020-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-04-012021-09-300000067088mufg:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossDueToSettlementsAndCurtailmentsAndOtherMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-04-012020-09-300000067088mufg:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossDueToSettlementsAndCurtailmentsAndOtherMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-04-012021-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-04-012020-09-300000067088us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-04-012021-09-300000067088us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedTranslationAdjustmentMember2020-04-012020-09-300000067088us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedTranslationAdjustmentMember2021-04-012021-09-300000067088us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-04-012020-09-300000067088us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-04-012021-09-300000067088mufg:DesignatedInterestRateOneMembermufg:MUFGAmericasHoldingsCorporationMemberus-gaap:CashFlowHedgingMemberus-gaap:InterestRateContractMember2021-06-300000067088srt:WeightedAverageMembermufg:MUFGAmericasHoldingsCorporationMemberus-gaap:CashFlowHedgingMember2020-01-012020-06-300000067088mufg:MUFGAmericasHoldingsCorporationMember2020-01-012020-06-300000067088us-gaap:InterestRateContractMember2021-03-310000067088us-gaap:InterestRateContractMember2021-09-300000067088us-gaap:ForeignExchangeContractMember2021-03-310000067088us-gaap:ForeignExchangeContractMember2021-09-300000067088us-gaap:EquityContractMember2021-03-310000067088us-gaap:EquityContractMember2021-09-300000067088us-gaap:CommodityContractMember2021-03-310000067088us-gaap:CommodityContractMember2021-09-300000067088us-gaap:CreditRiskContractMember2021-03-310000067088us-gaap:CreditRiskContractMember2021-09-300000067088us-gaap:OtherContractMember2021-03-310000067088us-gaap:OtherContractMember2021-09-300000067088us-gaap:NondesignatedMemberus-gaap:InterestRateContractMember2021-03-310000067088us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMember2021-03-310000067088us-gaap:NondesignatedMemberus-gaap:InterestRateContractMember2021-09-300000067088us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMember2021-09-300000067088us-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2021-03-310000067088us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMember2021-03-310000067088us-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2021-09-300000067088us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMember2021-09-300000067088us-gaap:NondesignatedMemberus-gaap:EquityContractMember2021-03-310000067088us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:EquityContractMember2021-03-310000067088us-gaap:NondesignatedMemberus-gaap:EquityContractMember2021-09-300000067088us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:EquityContractMember2021-09-300000067088us-gaap:CommodityContractMemberus-gaap:NondesignatedMember2021-03-310000067088us-gaap:CommodityContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2021-03-310000067088us-gaap:CommodityContractMemberus-gaap:NondesignatedMember2021-09-300000067088us-gaap:CommodityContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2021-09-300000067088us-gaap:CreditRiskContractMemberus-gaap:NondesignatedMember2021-03-310000067088us-gaap:CreditRiskContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2021-03-310000067088us-gaap:CreditRiskContractMemberus-gaap:NondesignatedMember2021-09-300000067088us-gaap:CreditRiskContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2021-09-300000067088us-gaap:OtherContractMemberus-gaap:NondesignatedMember2021-03-310000067088us-gaap:OtherContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2021-03-310000067088us-gaap:OtherContractMemberus-gaap:NondesignatedMember2021-09-300000067088us-gaap:OtherContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2021-09-300000067088us-gaap:NondesignatedMember2021-03-310000067088us-gaap:DesignatedAsHedgingInstrumentMember2021-03-310000067088us-gaap:NondesignatedMember2021-09-300000067088us-gaap:DesignatedAsHedgingInstrumentMember2021-09-300000067088us-gaap:ForeignCurrencyGainLossMemberus-gaap:InterestRateContractMember2020-04-012020-09-300000067088mufg:TradingAccountProfitsLossesNetMemberus-gaap:InterestRateContractMember2020-04-012020-09-300000067088us-gaap:InterestRateContractMember2020-04-012020-09-300000067088us-gaap:ForeignExchangeContractMemberus-gaap:ForeignCurrencyGainLossMember2020-04-012020-09-300000067088us-gaap:ForeignExchangeContractMembermufg:TradingAccountProfitsLossesNetMember2020-04-012020-09-300000067088us-gaap:ForeignExchangeContractMember2020-04-012020-09-300000067088us-gaap:ForeignCurrencyGainLossMemberus-gaap:EquityContractMember2020-04-012020-09-300000067088mufg:TradingAccountProfitsLossesNetMemberus-gaap:EquityContractMember2020-04-012020-09-300000067088us-gaap:EquityContractMember2020-04-012020-09-300000067088us-gaap:CreditRiskContractMemberus-gaap:ForeignCurrencyGainLossMember2020-04-012020-09-300000067088us-gaap:CreditRiskContractMembermufg:TradingAccountProfitsLossesNetMember2020-04-012020-09-300000067088us-gaap:CreditRiskContractMember2020-04-012020-09-300000067088us-gaap:OtherContractMemberus-gaap:ForeignCurrencyGainLossMember2020-04-012020-09-300000067088us-gaap:OtherContractMembermufg:TradingAccountProfitsLossesNetMember2020-04-012020-09-300000067088us-gaap:OtherContractMember2020-04-012020-09-300000067088us-gaap:ForeignCurrencyGainLossMember2020-04-012020-09-300000067088mufg:TradingAccountProfitsLossesNetMember2020-04-012020-09-300000067088us-gaap:ForeignCurrencyGainLossMemberus-gaap:InterestRateContractMember2021-04-012021-09-300000067088mufg:TradingAccountProfitsLossesNetMemberus-gaap:InterestRateContractMember2021-04-012021-09-300000067088us-gaap:InterestRateContractMember2021-04-012021-09-300000067088us-gaap:ForeignExchangeContractMemberus-gaap:ForeignCurrencyGainLossMember2021-04-012021-09-300000067088us-gaap:ForeignExchangeContractMembermufg:TradingAccountProfitsLossesNetMember2021-04-012021-09-300000067088us-gaap:ForeignExchangeContractMember2021-04-012021-09-300000067088us-gaap:ForeignCurrencyGainLossMemberus-gaap:EquityContractMember2021-04-012021-09-300000067088mufg:TradingAccountProfitsLossesNetMemberus-gaap:EquityContractMember2021-04-012021-09-300000067088us-gaap:EquityContractMember2021-04-012021-09-300000067088us-gaap:CreditRiskContractMemberus-gaap:ForeignCurrencyGainLossMember2021-04-012021-09-300000067088us-gaap:CreditRiskContractMembermufg:TradingAccountProfitsLossesNetMember2021-04-012021-09-300000067088us-gaap:CreditRiskContractMember2021-04-012021-09-300000067088us-gaap:OtherContractMemberus-gaap:ForeignCurrencyGainLossMember2021-04-012021-09-300000067088us-gaap:OtherContractMembermufg:TradingAccountProfitsLossesNetMember2021-04-012021-09-300000067088us-gaap:OtherContractMember2021-04-012021-09-300000067088us-gaap:ForeignCurrencyGainLossMember2021-04-012021-09-300000067088mufg:TradingAccountProfitsLossesNetMember2021-04-012021-09-300000067088mufg:SingleNameCreditDefaultSwapsMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-03-310000067088mufg:SingleNameCreditDefaultSwapsMemberus-gaap:ExternalCreditRatingNonInvestmentGradeMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-03-310000067088mufg:SingleNameCreditDefaultSwapsMembermufg:NotRatedMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-03-310000067088mufg:SingleNameCreditDefaultSwapsMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-03-310000067088us-gaap:ExternalCreditRatingInvestmentGradeMembermufg:IndexAndBasketCreditDefaultSwapsMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-03-310000067088us-gaap:ExternalCreditRatingNonInvestmentGradeMembermufg:IndexAndBasketCreditDefaultSwapsMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-03-310000067088mufg:IndexAndBasketCreditDefaultSwapsMembermufg:NotRatedMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-03-310000067088mufg:IndexAndBasketCreditDefaultSwapsMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-03-310000067088us-gaap:CreditDefaultSwapSellingProtectionMember2021-03-310000067088us-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:OtherCreditDerivativesMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-03-310000067088mufg:SingleNameCreditDefaultSwapsMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-09-300000067088mufg:SingleNameCreditDefaultSwapsMemberus-gaap:ExternalCreditRatingNonInvestmentGradeMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-09-300000067088mufg:SingleNameCreditDefaultSwapsMembermufg:NotRatedMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-09-300000067088mufg:SingleNameCreditDefaultSwapsMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-09-300000067088us-gaap:ExternalCreditRatingInvestmentGradeMembermufg:IndexAndBasketCreditDefaultSwapsMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-09-300000067088us-gaap:ExternalCreditRatingNonInvestmentGradeMembermufg:IndexAndBasketCreditDefaultSwapsMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-09-300000067088mufg:IndexAndBasketCreditDefaultSwapsMembermufg:NotRatedMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-09-300000067088mufg:IndexAndBasketCreditDefaultSwapsMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-09-300000067088us-gaap:CreditDefaultSwapSellingProtectionMember2021-09-300000067088us-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:OtherCreditDerivativesMemberus-gaap:CreditDefaultSwapSellingProtectionMember2021-09-3000000670882020-04-012021-03-310000067088mufg:StandbyLettersOfCreditAndFinancialGuaranteesMember2021-03-310000067088mufg:StandbyLettersOfCreditAndFinancialGuaranteesMember2021-09-300000067088us-gaap:PerformanceGuaranteeMember2021-03-310000067088us-gaap:PerformanceGuaranteeMember2021-09-300000067088mufg:DerivativeInstrumentsGuaranteeMember2021-03-310000067088mufg:DerivativeInstrumentsGuaranteeMember2021-09-300000067088mufg:LiabilitiesOfTrustAccountsMember2021-03-310000067088mufg:LiabilitiesOfTrustAccountsMember2021-09-300000067088us-gaap:GuaranteeTypeOtherMember2021-03-310000067088us-gaap:GuaranteeTypeOtherMember2021-09-300000067088us-gaap:FinancialStandbyLetterOfCreditMember2021-03-310000067088us-gaap:FinancialStandbyLetterOfCreditMembermufg:NormalMember2021-03-310000067088us-gaap:FinancialStandbyLetterOfCreditMembermufg:CloseWatchMember2021-03-310000067088us-gaap:FinancialStandbyLetterOfCreditMembermufg:LikelyToBecomeBankruptOrLegallyVirtuallyBankruptMember2021-03-310000067088us-gaap:FinancialStandbyLetterOfCreditMembermufg:NotRatedMember2021-03-310000067088us-gaap:PerformanceGuaranteeMembermufg:NormalMember2021-03-310000067088us-gaap:PerformanceGuaranteeMembermufg:CloseWatchMember2021-03-310000067088us-gaap:PerformanceGuaranteeMembermufg:LikelyToBecomeBankruptOrLegallyVirtuallyBankruptMember2021-03-310000067088us-gaap:PerformanceGuaranteeMembermufg:NotRatedMember2021-03-310000067088mufg:FinancialStandbyLetterOfCreditAndPerformanceGuaranteeMember2021-03-310000067088mufg:FinancialStandbyLetterOfCreditAndPerformanceGuaranteeMembermufg:NormalMember2021-03-310000067088mufg:FinancialStandbyLetterOfCreditAndPerformanceGuaranteeMembermufg:CloseWatchMember2021-03-310000067088mufg:FinancialStandbyLetterOfCreditAndPerformanceGuaranteeMembermufg:LikelyToBecomeBankruptOrLegallyVirtuallyBankruptMember2021-03-310000067088mufg:FinancialStandbyLetterOfCreditAndPerformanceGuaranteeMembermufg:NotRatedMember2021-03-310000067088us-gaap:FinancialStandbyLetterOfCreditMember2021-09-300000067088us-gaap:FinancialStandbyLetterOfCreditMembermufg:NormalMember2021-09-300000067088us-gaap:FinancialStandbyLetterOfCreditMembermufg:CloseWatchMember2021-09-300000067088us-gaap:FinancialStandbyLetterOfCreditMembermufg:LikelyToBecomeBankruptOrLegallyVirtuallyBankruptMember2021-09-300000067088us-gaap:FinancialStandbyLetterOfCreditMembermufg:NotRatedMember2021-09-300000067088us-gaap:PerformanceGuaranteeMembermufg:NormalMember2021-09-300000067088us-gaap:PerformanceGuaranteeMembermufg:CloseWatchMember2021-09-300000067088us-gaap:PerformanceGuaranteeMembermufg:LikelyToBecomeBankruptOrLegallyVirtuallyBankruptMember2021-09-300000067088us-gaap:PerformanceGuaranteeMembermufg:NotRatedMember2021-09-300000067088mufg:FinancialStandbyLetterOfCreditAndPerformanceGuaranteeMember2021-09-300000067088mufg:FinancialStandbyLetterOfCreditAndPerformanceGuaranteeMembermufg:NormalMember2021-09-300000067088mufg:FinancialStandbyLetterOfCreditAndPerformanceGuaranteeMembermufg:CloseWatchMember2021-09-300000067088mufg:FinancialStandbyLetterOfCreditAndPerformanceGuaranteeMembermufg:LikelyToBecomeBankruptOrLegallyVirtuallyBankruptMember2021-09-300000067088mufg:FinancialStandbyLetterOfCreditAndPerformanceGuaranteeMembermufg:NotRatedMember2021-09-300000067088us-gaap:CommitmentsToExtendCreditMember2021-03-310000067088us-gaap:CommitmentsToExtendCreditMember2021-09-300000067088us-gaap:LetterOfCreditMember2021-03-310000067088us-gaap:LetterOfCreditMember2021-09-300000067088mufg:CommitmentsToMakeInvestmentsMember2021-03-310000067088mufg:CommitmentsToMakeInvestmentsMember2021-09-300000067088mufg:OtherOffBalanceSheetInstrumentsMember2021-03-310000067088mufg:OtherOffBalanceSheetInstrumentsMember2021-09-300000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMembermufg:AssetBackedConduitsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-03-310000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMembermufg:InvestmentFundsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-03-310000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMembermufg:SpecialPurposeEntitiesCreatedForStructuredFinancingMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-03-310000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMembermufg:RepackagedInstrumentsMember2021-03-310000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMembermufg:SecuritizationOfMUFGGroupAssetsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-03-310000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMembermufg:TrustArrangementsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-03-310000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMembermufg:OtherVieMember2021-03-310000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-03-310000067088srt:ConsolidationEliminationsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-03-310000067088us-gaap:VariableInterestEntityPrimaryBeneficiaryMembermufg:VariableInterestEntityPrimaryBeneficiaryLiabilitiesWithRecourseEliminationsMember2021-03-310000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMembermufg:AssetBackedConduitsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-09-300000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMembermufg:InvestmentFundsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-09-300000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMembermufg:SpecialPurposeEntitiesCreatedForStructuredFinancingMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-09-300000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMembermufg:RepackagedInstrumentsMember2021-09-300000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMembermufg:SecuritizationOfMUFGGroupAssetsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-09-300000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMembermufg:TrustArrangementsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-09-300000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMembermufg:OtherVieMember2021-09-300000067088mufg:VariableInterestEntityPrimaryBeneficiaryBeforeEliminationsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-09-300000067088srt:ConsolidationEliminationsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-09-300000067088us-gaap:VariableInterestEntityPrimaryBeneficiaryMembermufg:VariableInterestEntityPrimaryBeneficiaryLiabilitiesWithRecourseEliminationsMember2021-09-300000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMembermufg:MUFGUnionBankMember2021-09-300000067088mufg:AssetBackedConduitsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-03-310000067088mufg:InvestmentFundsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-03-310000067088mufg:SpecialPurposeEntitiesCreatedForStructuredFinancingMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-03-310000067088mufg:RepackagedInstrumentsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-03-310000067088us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMembermufg:OtherVieMember2021-03-310000067088us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-03-310000067088mufg:AssetBackedConduitsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-09-300000067088mufg:InvestmentFundsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-09-300000067088mufg:SpecialPurposeEntitiesCreatedForStructuredFinancingMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-09-300000067088mufg:RepackagedInstrumentsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-09-300000067088us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMembermufg:OtherVieMember2021-09-300000067088us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-09-300000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-09-300000067088us-gaap:DepositAccountMember2020-04-012020-09-300000067088us-gaap:DepositAccountMember2021-04-012021-09-300000067088mufg:RemittancesAndTransfersMember2020-04-012020-09-300000067088mufg:RemittancesAndTransfersMember2021-04-012021-09-300000067088mufg:ForeignTradingBusinessMember2020-04-012020-09-300000067088mufg:ForeignTradingBusinessMember2021-04-012021-09-300000067088us-gaap:CreditCardMember2020-04-012020-09-300000067088us-gaap:CreditCardMember2021-04-012021-09-300000067088mufg:SecurityRelatedServicesMember2020-04-012020-09-300000067088mufg:SecurityRelatedServicesMember2021-04-012021-09-300000067088us-gaap:InvestmentAdvisoryManagementAndAdministrativeServiceMember2020-04-012020-09-300000067088us-gaap:InvestmentAdvisoryManagementAndAdministrativeServiceMember2021-04-012021-09-300000067088us-gaap:FiduciaryAndTrustMember2020-04-012020-09-300000067088us-gaap:FiduciaryAndTrustMember2021-04-012021-09-300000067088us-gaap:GuaranteesMember2020-04-012020-09-300000067088us-gaap:GuaranteesMember2021-04-012021-09-300000067088mufg:InsuranceCommissionsMember2020-04-012020-09-300000067088mufg:InsuranceCommissionsMember2021-04-012021-09-300000067088us-gaap:RealEstateMember2020-04-012020-09-300000067088us-gaap:RealEstateMember2021-04-012021-09-300000067088mufg:OtherFeesAndCommissionsMember2020-04-012020-09-300000067088mufg:OtherFeesAndCommissionsMember2021-04-012021-09-30mufg:segment00000670882021-04-012021-04-010000067088us-gaap:CorporateNonSegmentMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:GlobalCorporateAndInvestmentBankingBusinessGroupMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:GlobalCommercialBankingBusinessGroupMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:GlobalMarketsBusinessGroupMember2020-04-012020-09-300000067088mufg:RetailAndCommercialBankingBusinessGroupMember2020-04-012020-09-300000067088mufg:AssetManagementAndInvestorServicesBusinessGroupMember2020-04-012020-09-300000067088mufg:JapaneseCorporateAndInvestmentBankingBusinessGroupMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:DigitalServiceBusinessGroupMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:RetailAndCommercialBankingBusinessGroupMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:JapaneseCorporateAndInvestmentBankingBusinessGroupMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088mufg:AssetManagementAndInvestorServicesBusinessGroupMemberus-gaap:OperatingSegmentsMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:DigitalServiceBusinessGroupMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:RetailAndCommercialBankingBusinessGroupMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:JapaneseCorporateAndInvestmentBankingBusinessGroupMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:GlobalCorporateAndInvestmentBankingBusinessGroupMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:GlobalCommercialBankingBusinessGroupMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088mufg:BKAndTBMembermufg:AssetManagementAndInvestorServicesBusinessGroupMemberus-gaap:OperatingSegmentsMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:GlobalMarketsBusinessGroupMember2020-04-012020-09-300000067088mufg:BKAndTBMemberus-gaap:CorporateNonSegmentMember2020-04-012020-09-300000067088mufg:BKAndTBMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:DigitalServiceBusinessGroupMembermufg:OtherThanBKAndTBMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:OtherThanBKAndTBMembermufg:RetailAndCommercialBankingBusinessGroupMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:JapaneseCorporateAndInvestmentBankingBusinessGroupMembermufg:OtherThanBKAndTBMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:OtherThanBKAndTBMembermufg:GlobalCorporateAndInvestmentBankingBusinessGroupMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:GlobalCommercialBankingBusinessGroupMembermufg:OtherThanBKAndTBMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088mufg:AssetManagementAndInvestorServicesBusinessGroupMemberus-gaap:OperatingSegmentsMembermufg:OtherThanBKAndTBMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:OtherThanBKAndTBMembermufg:CustomerBusinessMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:OtherThanBKAndTBMembermufg:GlobalMarketsBusinessGroupMember2020-04-012020-09-300000067088mufg:OtherThanBKAndTBMemberus-gaap:CorporateNonSegmentMember2020-04-012020-09-300000067088mufg:OtherThanBKAndTBMember2020-04-012020-09-300000067088us-gaap:OperatingSegmentsMembermufg:DigitalServiceBusinessGroupMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088us-gaap:OperatingSegmentsMembermufg:RetailAndCommercialBankingBusinessGroupMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088us-gaap:OperatingSegmentsMembermufg:JapaneseCorporateAndInvestmentBankingBusinessGroupMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088us-gaap:OperatingSegmentsMembermufg:GlobalCorporateAndInvestmentBankingBusinessGroupMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088us-gaap:OperatingSegmentsMembermufg:GlobalCommercialBankingBusinessGroupMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088mufg:AssetManagementAndInvestorServicesBusinessGroupMemberus-gaap:OperatingSegmentsMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088us-gaap:OperatingSegmentsMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088us-gaap:OperatingSegmentsMembermufg:GlobalMarketsBusinessGroupMember2021-04-012021-09-300000067088us-gaap:CorporateNonSegmentMember2021-04-012021-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:DigitalServiceBusinessGroupMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:RetailAndCommercialBankingBusinessGroupMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:JapaneseCorporateAndInvestmentBankingBusinessGroupMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:GlobalCorporateAndInvestmentBankingBusinessGroupMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:GlobalCommercialBankingBusinessGroupMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088mufg:BKAndTBMembermufg:AssetManagementAndInvestorServicesBusinessGroupMemberus-gaap:OperatingSegmentsMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088mufg:BKAndTBMemberus-gaap:OperatingSegmentsMembermufg:GlobalMarketsBusinessGroupMember2021-04-012021-09-300000067088mufg:BKAndTBMemberus-gaap:CorporateNonSegmentMember2021-04-012021-09-300000067088mufg:BKAndTBMember2021-04-012021-09-300000067088us-gaap:OperatingSegmentsMembermufg:DigitalServiceBusinessGroupMembermufg:OtherThanBKAndTBMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088us-gaap:OperatingSegmentsMembermufg:OtherThanBKAndTBMembermufg:RetailAndCommercialBankingBusinessGroupMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088us-gaap:OperatingSegmentsMembermufg:JapaneseCorporateAndInvestmentBankingBusinessGroupMembermufg:OtherThanBKAndTBMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088us-gaap:OperatingSegmentsMembermufg:OtherThanBKAndTBMembermufg:GlobalCorporateAndInvestmentBankingBusinessGroupMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088us-gaap:OperatingSegmentsMembermufg:GlobalCommercialBankingBusinessGroupMembermufg:OtherThanBKAndTBMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088mufg:AssetManagementAndInvestorServicesBusinessGroupMemberus-gaap:OperatingSegmentsMembermufg:OtherThanBKAndTBMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088us-gaap:OperatingSegmentsMembermufg:OtherThanBKAndTBMembermufg:CustomerBusinessMember2021-04-012021-09-300000067088us-gaap:OperatingSegmentsMembermufg:OtherThanBKAndTBMembermufg:GlobalMarketsBusinessGroupMember2021-04-012021-09-300000067088mufg:OtherThanBKAndTBMemberus-gaap:CorporateNonSegmentMember2021-04-012021-09-300000067088mufg:OtherThanBKAndTBMember2021-04-012021-09-300000067088us-gaap:MaterialReconcilingItemsMember2020-04-012020-09-300000067088us-gaap:MaterialReconcilingItemsMember2021-04-012021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:CommercialPaperMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:CommercialPaperMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityContractMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityContractMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityContractMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityContractMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-03-310000067088us-gaap:CommercialPaperMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:CommercialPaperMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel1Membermufg:MarketableEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088mufg:MarketableEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:MarketableEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088mufg:MarketableEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMembermufg:NonMarketableEquitySecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:NonMarketableEquitySecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:NonMarketableEquitySecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:NonMarketableEquitySecuritiesMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:CommercialPaperMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:CommercialPaperMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtSecuritiesMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityContractMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityContractMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityContractMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityContractMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:JapaneseNationalGovernmentAndJapaneseGovernmentAgencyBondsMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:JapanesePrefecturalAndMunicipalBondsMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-09-300000067088us-gaap:CommercialPaperMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:CommercialPaperMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel1Membermufg:MarketableEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088mufg:MarketableEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:MarketableEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088mufg:MarketableEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMembermufg:NonMarketableEquitySecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:NonMarketableEquitySecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:NonMarketableEquitySecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:NonMarketableEquitySecuritiesMember2021-09-300000067088us-gaap:EquitySecuritiesMembermufg:NetAssetValueOfPrivateEquityFundsMemberMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:EquitySecuritiesMembermufg:NetAssetValueOfPrivateEquityFundsMemberMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMembermufg:NonMarketableEquitySecuritiesMember2021-03-310000067088mufg:PrivateEquityAndOtherFundsMemberus-gaap:FairValueMeasurementsRecurringMembermufg:NonMarketableEquitySecuritiesMember2021-03-310000067088us-gaap:RealEstateFundsMemberus-gaap:FairValueMeasurementsRecurringMembermufg:NonMarketableEquitySecuritiesMember2021-09-300000067088mufg:PrivateEquityAndOtherFundsMemberus-gaap:FairValueMeasurementsRecurringMembermufg:NonMarketableEquitySecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMember2021-09-300000067088us-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMember2021-09-300000067088us-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMembermufg:MUFGUnionBankMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountTradingSecuritiesMember2020-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountTradingSecuritiesMember2020-04-012020-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountTradingSecuritiesMember2020-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMembermufg:TradingAccountDebtSecuritiesMember2020-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMembermufg:TradingAccountDebtSecuritiesMember2020-04-012020-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMembermufg:TradingAccountDebtSecuritiesMember2020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMembermufg:TradingAccountDebtSecuritiesMember2020-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMembermufg:TradingAccountDebtSecuritiesMember2020-04-012020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMembermufg:TradingAccountDebtSecuritiesMember2020-09-300000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountDebtSecuritiesMember2020-03-310000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountDebtSecuritiesMember2020-04-012020-09-300000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountDebtSecuritiesMember2020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembermufg:TradingAccountDebtSecuritiesMember2020-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembermufg:TradingAccountDebtSecuritiesMember2020-04-012020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembermufg:TradingAccountDebtSecuritiesMember2020-09-300000067088mufg:TradingAccountEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-03-310000067088mufg:TradingAccountEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-04-012020-09-300000067088mufg:TradingAccountEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-04-012020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:InterestRateContractMember2020-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:InterestRateContractMember2020-04-012020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:InterestRateContractMember2020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-04-012020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:EquityContractMember2020-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:EquityContractMember2020-04-012020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:EquityContractMember2020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-04-012020-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-09-300000067088us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-03-310000067088us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-04-012020-09-300000067088us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-09-300000067088us-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-03-310000067088us-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-04-012020-09-300000067088us-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-04-012020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2020-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2020-04-012020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2020-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2020-04-012020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-04-012020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMember2020-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMember2020-04-012020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMember2020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2020-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2020-04-012020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2020-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2020-04-012020-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2020-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:InvestmentSecuritiesEquitySecuritiesMember2020-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:InvestmentSecuritiesEquitySecuritiesMember2020-04-012020-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:InvestmentSecuritiesEquitySecuritiesMember2020-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:InvestmentSecuritiesEquitySecuritiesMembermufg:NonMarketableEquitySecuritiesMember2020-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:InvestmentSecuritiesEquitySecuritiesMembermufg:NonMarketableEquitySecuritiesMember2020-04-012020-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:InvestmentSecuritiesEquitySecuritiesMembermufg:NonMarketableEquitySecuritiesMember2020-09-300000067088mufg:OtherAssetsFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMember2020-03-310000067088mufg:OtherAssetsFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMember2020-04-012020-09-300000067088mufg:OtherAssetsFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMember2020-09-300000067088us-gaap:FairValueMeasurementsRecurringMember2020-03-310000067088us-gaap:FairValueMeasurementsRecurringMember2020-04-012020-09-300000067088us-gaap:FairValueMeasurementsRecurringMember2020-09-300000067088mufg:OtherLiabilitiesFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMember2020-03-310000067088mufg:OtherLiabilitiesFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMember2020-04-012020-09-300000067088mufg:OtherLiabilitiesFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMember2020-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountTradingSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountTradingSecuritiesMember2021-04-012021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountTradingSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMembermufg:TradingAccountDebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMembermufg:TradingAccountDebtSecuritiesMember2021-04-012021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMembermufg:TradingAccountDebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMembermufg:TradingAccountDebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMembermufg:TradingAccountDebtSecuritiesMember2021-04-012021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMembermufg:TradingAccountDebtSecuritiesMember2021-09-300000067088us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountDebtSecuritiesMember2021-03-310000067088us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountDebtSecuritiesMember2021-04-012021-09-300000067088us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountDebtSecuritiesMember2021-09-300000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountDebtSecuritiesMember2021-03-310000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountDebtSecuritiesMember2021-04-012021-09-300000067088us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:TradingAccountDebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembermufg:TradingAccountDebtSecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembermufg:TradingAccountDebtSecuritiesMember2021-04-012021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembermufg:TradingAccountDebtSecuritiesMember2021-09-300000067088mufg:TradingAccountEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088mufg:TradingAccountEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-04-012021-09-300000067088mufg:TradingAccountEquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-04-012021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:InterestRateContractMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:InterestRateContractMember2021-04-012021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:InterestRateContractMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-04-012021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:EquityContractMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:EquityContractMember2021-04-012021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:EquityContractMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-04-012021-09-300000067088us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-09-300000067088us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-03-310000067088us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-04-012021-09-300000067088us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-09-300000067088us-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-03-310000067088us-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-04-012021-09-300000067088us-gaap:OtherContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-04-012021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-04-012021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2021-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2021-04-012021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-04-012021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMember2021-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMember2021-04-012021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMember2021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2021-04-012021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-03-310000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-04-012021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:InvestmentSecuritiesEquitySecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:InvestmentSecuritiesEquitySecuritiesMember2021-04-012021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:InvestmentSecuritiesEquitySecuritiesMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:InvestmentSecuritiesEquitySecuritiesMembermufg:NonMarketableEquitySecuritiesMember2021-03-310000067088us-gaap:FairValueMeasurementsRecurringMembermufg:InvestmentSecuritiesEquitySecuritiesMembermufg:NonMarketableEquitySecuritiesMember2021-04-012021-09-300000067088us-gaap:FairValueMeasurementsRecurringMembermufg:InvestmentSecuritiesEquitySecuritiesMembermufg:NonMarketableEquitySecuritiesMember2021-09-300000067088mufg:OtherAssetsFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088mufg:OtherAssetsFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMember2021-04-012021-09-300000067088mufg:OtherAssetsFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueMeasurementsRecurringMember2021-04-012021-09-300000067088mufg:OtherLiabilitiesFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088mufg:OtherLiabilitiesFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMember2021-04-012021-09-300000067088mufg:OtherLiabilitiesFairValueDisclosureMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:MeasurementInputDefaultRateMembersrt:MinimumMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:MeasurementInputDefaultRateMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:WeightedAverageMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:MeasurementInputDefaultRateMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMembersrt:MinimumMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMembersrt:WeightedAverageMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMembermufg:MeasurementInputMarketRequiredReturnOnCapitalMembersrt:MinimumMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMembermufg:MeasurementInputMarketRequiredReturnOnCapitalMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:WeightedAverageMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMembermufg:MeasurementInputMarketRequiredReturnOnCapitalMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:MeasurementInputDefaultRateMembersrt:MinimumMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:MeasurementInputDefaultRateMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membersrt:WeightedAverageMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:MeasurementInputDefaultRateMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MinimumMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMembersrt:WeightedAverageMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembersrt:WeightedAverageMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2021-03-310000067088us-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMember2021-03-310000067088us-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Membermufg:InternalModelMembersrt:WeightedAverageMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMemberus-gaap:MeasurementInputPrepaymentRateMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMemberus-gaap:MeasurementInputPrepaymentRateMembersrt:WeightedAverageMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MeasurementInputDefaultRateMembersrt:MinimumMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MeasurementInputDefaultRateMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembersrt:WeightedAverageMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MeasurementInputDefaultRateMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:MeasurementInputRecoveryRateMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:MeasurementInputRecoveryRateMembersrt:WeightedAverageMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:MeasurementInputLiquidityPremiumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MinimumMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membermufg:MeasurementInputLiquidityPremiumMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membersrt:WeightedAverageMembermufg:MeasurementInputLiquidityPremiumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:MeasurementInputDefaultRateMembersrt:MinimumMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:MeasurementInputDefaultRateMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:WeightedAverageMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:MeasurementInputDefaultRateMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembersrt:MinimumMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMembersrt:WeightedAverageMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembermufg:MeasurementInputMarketRequiredReturnOnCapitalMembersrt:MinimumMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembermufg:MeasurementInputMarketRequiredReturnOnCapitalMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:WeightedAverageMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembermufg:MeasurementInputMarketRequiredReturnOnCapitalMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:InterestRateContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputInterestRateCorrelationMemberus-gaap:InterestRateContractMembersrt:MinimumMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputInterestRateCorrelationMemberus-gaap:InterestRateContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputInterestRateCorrelationMembersrt:MedianMemberus-gaap:InterestRateContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputInterestRateAndForeignExchangeRateCorrelationMemberus-gaap:InterestRateContractMembersrt:MinimumMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputInterestRateAndForeignExchangeRateCorrelationMemberus-gaap:InterestRateContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMembermufg:MeasurementInputInterestRateAndForeignExchangeRateCorrelationMemberus-gaap:InterestRateContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:MeasurementInputOptionVolatilityMemberus-gaap:InterestRateContractMembersrt:MinimumMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:MeasurementInputOptionVolatilityMemberus-gaap:InterestRateContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:MeasurementInputOptionVolatilityMembersrt:MedianMemberus-gaap:InterestRateContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMembermufg:MeasurementInputInterestRateCorrelationMembersrt:MinimumMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMembermufg:MeasurementInputInterestRateCorrelationMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMembermufg:MeasurementInputInterestRateCorrelationMembersrt:MedianMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMembermufg:MeasurementInputInterestRateAndForeignExchangeRateCorrelationMembersrt:MinimumMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMembermufg:MeasurementInputInterestRateAndForeignExchangeRateCorrelationMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMembersrt:MedianMembermufg:MeasurementInputInterestRateAndForeignExchangeRateCorrelationMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputCorrelationBetweenForeignExchangeRateMemberus-gaap:ForeignExchangeContractMembersrt:MinimumMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputCorrelationBetweenForeignExchangeRateMemberus-gaap:ForeignExchangeContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputCorrelationBetweenForeignExchangeRateMemberus-gaap:ForeignExchangeContractMembersrt:MedianMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMemberus-gaap:MeasurementInputOptionVolatilityMembersrt:MinimumMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMemberus-gaap:MeasurementInputOptionVolatilityMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMemberus-gaap:MeasurementInputOptionVolatilityMembersrt:MedianMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMember2021-03-310000067088mufg:MeasurementInputForeignExchangeRateAndEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MinimumMember2021-03-310000067088mufg:MeasurementInputForeignExchangeRateAndEquityCorrelationMemberus-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMember2021-03-310000067088mufg:MeasurementInputForeignExchangeRateAndEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:EquityContractMember2021-03-310000067088mufg:MeasurementInputCorrelationBetweenEquitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MinimumMember2021-03-310000067088mufg:MeasurementInputCorrelationBetweenEquitiesMemberus-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMember2021-03-310000067088mufg:MeasurementInputCorrelationBetweenEquitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:EquityContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:MeasurementInputOptionVolatilityMemberus-gaap:EquityContractMembersrt:MinimumMember2021-03-310000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:MeasurementInputOptionVolatilityMemberus-gaap:EquityContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:MeasurementInputOptionVolatilityMembersrt:MedianMemberus-gaap:EquityContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:EquityContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:MeasurementInputTermOfLitigationMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:EquityContractMembersrt:MinimumMember2021-03-31utr:Y0000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMembermufg:MeasurementInputTermOfLitigationMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:EquityContractMember2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:MeasurementInputTermOfLitigationMemberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MedianMemberus-gaap:EquityContractMember2021-03-310000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:MeasurementInputDefaultRateMembersrt:MinimumMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:MeasurementInputDefaultRateMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:WeightedAverageMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMemberus-gaap:MeasurementInputDefaultRateMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMembersrt:MinimumMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMembersrt:WeightedAverageMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMembermufg:MeasurementInputMarketRequiredReturnOnCapitalMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:WeightedAverageMemberus-gaap:FairValueMeasurementsRecurringMembermufg:ForeignGovernmentsAndOfficialInstitutionsBondsMembermufg:MeasurementInputMarketRequiredReturnOnCapitalMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMembersrt:WeightedAverageMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembersrt:WeightedAverageMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2021-09-300000067088us-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMembersrt:MinimumMember2021-09-300000067088us-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Membermufg:InternalModelMembersrt:WeightedAverageMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMemberus-gaap:MeasurementInputPrepaymentRateMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMemberus-gaap:MeasurementInputPrepaymentRateMembersrt:WeightedAverageMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MeasurementInputDefaultRateMembersrt:MinimumMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MeasurementInputDefaultRateMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembersrt:WeightedAverageMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MeasurementInputDefaultRateMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:MeasurementInputRecoveryRateMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:InternalModelMembermufg:MeasurementInputRecoveryRateMembersrt:WeightedAverageMembermufg:ResidentialAndCommercialMortgagebackedSecuritiesAndAssetbackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:MeasurementInputLiquidityPremiumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MinimumMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membermufg:MeasurementInputLiquidityPremiumMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membersrt:WeightedAverageMembermufg:MeasurementInputLiquidityPremiumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:MeasurementInputDefaultRateMembersrt:MinimumMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:MeasurementInputDefaultRateMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:WeightedAverageMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMemberus-gaap:MeasurementInputDefaultRateMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembersrt:MinimumMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membermufg:MeasurementInputRecoveryRateMembersrt:WeightedAverageMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembermufg:MeasurementInputMarketRequiredReturnOnCapitalMembersrt:MinimumMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembermufg:MeasurementInputMarketRequiredReturnOnCapitalMember2021-09-300000067088mufg:ReturnOnEquityMethodMemberus-gaap:FairValueInputsLevel3Membersrt:WeightedAverageMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherDebtSecuritiesMembermufg:MeasurementInputMarketRequiredReturnOnCapitalMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:InterestRateContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputInterestRateCorrelationMemberus-gaap:InterestRateContractMembersrt:MinimumMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputInterestRateCorrelationMemberus-gaap:InterestRateContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputInterestRateCorrelationMembersrt:MedianMemberus-gaap:InterestRateContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputInterestRateAndForeignExchangeRateCorrelationMemberus-gaap:InterestRateContractMembersrt:MinimumMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputInterestRateAndForeignExchangeRateCorrelationMemberus-gaap:InterestRateContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMembermufg:MeasurementInputInterestRateAndForeignExchangeRateCorrelationMemberus-gaap:InterestRateContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:MeasurementInputOptionVolatilityMemberus-gaap:InterestRateContractMembersrt:MinimumMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:MeasurementInputOptionVolatilityMemberus-gaap:InterestRateContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:MeasurementInputOptionVolatilityMembersrt:MedianMemberus-gaap:InterestRateContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMembermufg:MeasurementInputInterestRateCorrelationMembersrt:MinimumMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMembermufg:MeasurementInputInterestRateCorrelationMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMembermufg:MeasurementInputInterestRateCorrelationMembersrt:MedianMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMembermufg:MeasurementInputInterestRateAndForeignExchangeRateCorrelationMembersrt:MinimumMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMembermufg:MeasurementInputInterestRateAndForeignExchangeRateCorrelationMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMembersrt:MedianMembermufg:MeasurementInputInterestRateAndForeignExchangeRateCorrelationMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputCorrelationBetweenForeignExchangeRateMemberus-gaap:ForeignExchangeContractMembersrt:MinimumMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputCorrelationBetweenForeignExchangeRateMemberus-gaap:ForeignExchangeContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembermufg:MeasurementInputCorrelationBetweenForeignExchangeRateMemberus-gaap:ForeignExchangeContractMembersrt:MedianMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMemberus-gaap:MeasurementInputOptionVolatilityMembersrt:MinimumMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMemberus-gaap:MeasurementInputOptionVolatilityMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:ForeignExchangeContractMemberus-gaap:MeasurementInputOptionVolatilityMembersrt:MedianMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMember2021-09-300000067088mufg:MeasurementInputForeignExchangeRateAndEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MinimumMember2021-09-300000067088mufg:MeasurementInputForeignExchangeRateAndEquityCorrelationMemberus-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMember2021-09-300000067088mufg:MeasurementInputForeignExchangeRateAndEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:EquityContractMember2021-09-300000067088mufg:MeasurementInputCorrelationBetweenEquitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MinimumMember2021-09-300000067088mufg:MeasurementInputCorrelationBetweenEquitiesMemberus-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMember2021-09-300000067088mufg:MeasurementInputCorrelationBetweenEquitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:EquityContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:MeasurementInputOptionVolatilityMemberus-gaap:EquityContractMembersrt:MinimumMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:MeasurementInputOptionVolatilityMemberus-gaap:EquityContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:MeasurementInputOptionVolatilityMembersrt:MedianMemberus-gaap:EquityContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:EquityContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:MeasurementInputTermOfLitigationMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:EquityContractMembersrt:MinimumMember2021-09-300000067088us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMembermufg:MeasurementInputTermOfLitigationMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:EquityContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMembermufg:MeasurementInputTermOfLitigationMemberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MedianMemberus-gaap:EquityContractMember2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMember2021-09-300000067088us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Member2021-03-310000067088us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000067088us-gaap:FairValueMeasurementsNonrecurringMember2021-03-310000067088us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Member2021-09-300000067088us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2021-09-300000067088us-gaap:FairValueMeasurementsNonrecurringMember2021-09-300000067088us-gaap:PrivateEquityFundsMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-03-310000067088us-gaap:PrivateEquityFundsMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-09-300000067088us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMember2021-09-300000067088us-gaap:SecuritiesAssetsMember2020-04-012020-09-300000067088us-gaap:SecuritiesAssetsMember2021-04-012021-09-300000067088us-gaap:LoansReceivableMember2020-04-012020-09-300000067088us-gaap:LoansReceivableMember2021-04-012021-09-300000067088mufg:LoansHeldForSaleMemberus-gaap:LoansReceivableMember2020-04-012020-09-300000067088mufg:LoansHeldForSaleMemberus-gaap:LoansReceivableMember2021-04-012021-09-300000067088mufg:CollateralDependentLoansMemberus-gaap:LoansReceivableMember2020-04-012020-09-300000067088mufg:CollateralDependentLoansMemberus-gaap:LoansReceivableMember2021-04-012021-09-300000067088us-gaap:PropertyPlantAndEquipmentMember2020-04-012020-09-300000067088us-gaap:PropertyPlantAndEquipmentMember2021-04-012021-09-300000067088mufg:IntangibleAssetsMember2020-04-012020-09-300000067088mufg:IntangibleAssetsMember2021-04-012021-09-300000067088us-gaap:GoodwillMember2020-04-012020-09-300000067088us-gaap:GoodwillMember2021-04-012021-09-300000067088us-gaap:OtherAssetsMember2020-04-012020-09-300000067088us-gaap:OtherAssetsMember2021-04-012021-09-300000067088us-gaap:EquityMethodInvestmentsMemberus-gaap:OtherAssetsMember2020-04-012020-09-300000067088us-gaap:EquityMethodInvestmentsMemberus-gaap:OtherAssetsMember2021-04-012021-09-300000067088us-gaap:OtherAssetsMembermufg:OtherInOtherAssetsFairValueDisclosureMember2020-04-012020-09-300000067088us-gaap:OtherAssetsMembermufg:OtherInOtherAssetsFairValueDisclosureMember2021-04-012021-09-300000067088mufg:TradingAccountMembermufg:TradingAccountSecuritiesMemberus-gaap:AssetsMember2020-04-012020-09-300000067088mufg:ForeignExchangeGainsLossesMembermufg:TradingAccountSecuritiesMemberus-gaap:AssetsMember2020-04-012020-09-300000067088mufg:TradingAccountSecuritiesMemberus-gaap:AssetsMember2020-04-012020-09-300000067088mufg:TradingAccountMembermufg:TradingAccountSecuritiesMemberus-gaap:AssetsMember2021-04-012021-09-300000067088mufg:ForeignExchangeGainsLossesMembermufg:TradingAccountSecuritiesMemberus-gaap:AssetsMember2021-04-012021-09-300000067088mufg:TradingAccountSecuritiesMemberus-gaap:AssetsMember2021-04-012021-09-300000067088mufg:TradingAccountMemberus-gaap:AssetsMember2020-04-012020-09-300000067088mufg:ForeignExchangeGainsLossesMemberus-gaap:AssetsMember2020-04-012020-09-300000067088us-gaap:AssetsMember2020-04-012020-09-300000067088mufg:TradingAccountMemberus-gaap:AssetsMember2021-04-012021-09-300000067088mufg:ForeignExchangeGainsLossesMemberus-gaap:AssetsMember2021-04-012021-09-300000067088us-gaap:AssetsMember2021-04-012021-09-300000067088mufg:TradingAccountMemberus-gaap:LiabilityMembermufg:OtherShortTermBorrowingMember2020-04-012020-09-300000067088mufg:ForeignExchangeGainsLossesMemberus-gaap:LiabilityMembermufg:OtherShortTermBorrowingMember2020-04-012020-09-300000067088us-gaap:LiabilityMembermufg:OtherShortTermBorrowingMember2020-04-012020-09-300000067088mufg:TradingAccountMemberus-gaap:LiabilityMembermufg:OtherShortTermBorrowingMember2021-04-012021-09-300000067088mufg:ForeignExchangeGainsLossesMemberus-gaap:LiabilityMembermufg:OtherShortTermBorrowingMember2021-04-012021-09-300000067088us-gaap:LiabilityMembermufg:OtherShortTermBorrowingMember2021-04-012021-09-300000067088us-gaap:LongTermDebtMembermufg:TradingAccountMemberus-gaap:LiabilityMember2020-04-012020-09-300000067088us-gaap:LongTermDebtMembermufg:ForeignExchangeGainsLossesMemberus-gaap:LiabilityMember2020-04-012020-09-300000067088us-gaap:LongTermDebtMemberus-gaap:LiabilityMember2020-04-012020-09-300000067088us-gaap:LongTermDebtMembermufg:TradingAccountMemberus-gaap:LiabilityMember2021-04-012021-09-300000067088us-gaap:LongTermDebtMembermufg:ForeignExchangeGainsLossesMemberus-gaap:LiabilityMember2021-04-012021-09-300000067088us-gaap:LongTermDebtMemberus-gaap:LiabilityMember2021-04-012021-09-300000067088mufg:TradingAccountMemberus-gaap:LiabilityMember2020-04-012020-09-300000067088mufg:ForeignExchangeGainsLossesMemberus-gaap:LiabilityMember2020-04-012020-09-300000067088us-gaap:LiabilityMember2020-04-012020-09-300000067088mufg:TradingAccountMemberus-gaap:LiabilityMember2021-04-012021-09-300000067088mufg:ForeignExchangeGainsLossesMemberus-gaap:LiabilityMember2021-04-012021-09-300000067088us-gaap:LiabilityMember2021-04-012021-09-300000067088us-gaap:LongTermDebtMember2021-03-310000067088us-gaap:LongTermDebtMember2021-09-300000067088us-gaap:CarryingReportedAmountFairValueDisclosureMember2021-03-310000067088us-gaap:EstimateOfFairValueFairValueDisclosureMember2021-03-310000067088us-gaap:FairValueInputsLevel1Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2021-03-310000067088us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2021-03-310000067088us-gaap:FairValueInputsLevel3Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2021-03-310000067088us-gaap:CarryingReportedAmountFairValueDisclosureMember2021-09-300000067088us-gaap:EstimateOfFairValueFairValueDisclosureMember2021-09-300000067088us-gaap:FairValueInputsLevel1Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2021-09-300000067088us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2021-09-300000067088us-gaap:FairValueInputsLevel3Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2021-09-300000067088us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembermufg:MUFGUnionBankMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2021-09-300000067088mufg:MorganStanleyMember2020-04-012020-09-300000067088mufg:MorganStanleyMember2021-04-012021-09-300000067088us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesMembermufg:MorganStanleyMember2020-04-012020-09-300000067088us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesMembermufg:MorganStanleyMember2021-04-012021-09-300000067088us-gaap:CommonStockMemberus-gaap:SubsequentEventMember2021-11-150000067088us-gaap:SubsequentEventMember2022-03-310000067088us-gaap:CommonStockMemberus-gaap:SubsequentEventMember2021-11-162022-03-310000067088us-gaap:SubsequentEventMember2021-11-162021-12-270000067088us-gaap:SubsequentEventMember2021-11-302021-11-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16 under

the Securities Exchange Act of 1934

For the month of December 2021

Commission File No. 000-54189

MITSUBISHI UFJ FINANCIAL GROUP, INC.

(Translation of registrant’s name into English)

7-1, Marunouchi 2-chome, Chiyoda-ku

Tokyo 100-8330, Japan

(Address of principal executive office)

Indicate by check mark whether the registrant files or

will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F      X        Form 40-F                  

Indicate by check mark if the registrant is submitting the Form 6-K

in paper as permitted by Regulation S-T Rule 101(b)(1):

Indicate by check mark if the registrant is submitting the Form 6-K

in paper as permitted by Regulation S-T Rule 101(b)(7):

THIS REPORT ON FORM 6-K SHALL BE DEEMED TO BE INCORPORATED BY REFERENCE IN THE REGISTRATION STATEMENT ON FORM F-3 (NO. 333-242048) OF MITSUBISHI UFJ FINANCIAL GROUP, INC. AND TO BE A PART THEREOF FROM THE DATE ON WHICH THIS REPORT IS FURNISHED TO THE U.S. SECURITIES AND EXCHANGE COMMISSION TO THE EXTENT NOT SUPERSEDED BY DOCUMENTS OR REPORTS SUBSEQUENTLY FILED WITH OR FURNISHED TO THE U.S. SECURITIES AND EXCHANGE COMMISSION. 

---

EXHIBITS

Exhibit			Description
99(a)			Financial Review and Unaudited Condensed Consolidated Financial Statements as of and for the Six Months Ended September 30, 2021
99(b)			Capitalization and Indebtedness of Mitsubishi UFJ Financial Group, Inc. as of September 30, 2021
101.INS			Inline XBRL Instance Document—the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH			Inline XBRL Taxomony Extension Schema Document
101.CAL			Inline XBRL Taxomony Extension Calculation Linkbase Document
101.DEF			Inline XBRL Taxomony Extension Definition Linkbase Document
101.LAB			Inline XBRL Taxomony Extension Label Linkbase Document
101.PRE			Inline XBRL Taxomony Extension Presentation Linkbase Document

 

---

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: December 27, 2021

Mitsubishi UFJ Financial Group, Inc.
By:			/s/ Ken Aikawa
Name:			Ken Aikawa
Title:			Managing Director, Head of Documentation & Corporate Secretary Department, Corporate Administration Division